The commander of Auschwitz-Birkenau, Rudolf Höss, stated in his autobiography that in 1941 (no exact date is given) he was summoned to Berlin, where Himmler informed him that Hitler had issued an order to solve the “Jewish Question” for good, and that the order was to be implemented by the SS. “The existing extermination places in the east are unsuited to a large scale, long-term action. I have designated Auschwitz for this purpose,” Himmler said.
I later qualified as a psychotherapist, a job which I enjoy immensely, but which confronts me with the suffering caused by the Holocaust on a daily basis. My patients are from “both sides” – either victims or perpetrators, or their relatives – and many are what you’d call transgenerationally affected – carrying around with them the issues and traumas that their parents or grandparents never dealt with, and which unless cured are like a contagious disease that they’ll pass on to the next generation.
As far as we could see, there was no possibility in camp for any religious services. Sundays are workdays for the inmates. Among the Jewish prisoners the rabbis were treated especially badly. Officially the fight against religious affiliations is not admitted, but as a matter of fact National Socialism is no less antireligious than Bolshevism, with the only difference that it has not yet developed quite so far in the amalgamation of political and religious ideologies.
The NSDAP (Nazi Party) assumed power in 1933 in the aftermath and decline of the Weimar Republic. In response to the instability created by the Great Depression, the Nazis sought a Third Way managed economy that was neither capitalism nor communism. Nazi rule effectively ended on May 7, 1945, V-E Day (Victory in Europe Day), when the Nazis unconditionally surrendered to the Allied Powers, who took over Germany's administration until Germany could form its own democratic government.
Families, who had disembarked together, were quickly and brutally split up as an SS officer, usually, a Nazi doctor, ordered each individual into one of two lines. Most women, children, older men, and those that looked unfit or unhealthy were sent to the left; while most young men and others that looked strong enough to do hard labor were sent to the right.
The Sturmabteilung (SA) and the Schutzstaffel (SS) functioned as the paramilitary organizations of the Nazi Party. Using the SS for the task, Hitler purged the party's more socially and economically radical factions in the mid-1934 Night of the Long Knives, including the leadership of the SA. After the death of President Hindenburg, political power was concentrated in Hitler's hands and he became Germany's head of state as well as the head of the government, with the title of Führer, meaning "leader". From that point, Hitler was effectively the dictator of Nazi Germany, which was also known as the "Third Reich", under which Jews, political opponents and other "undesirable" elements were marginalized, imprisoned or murdered. Many millions of people were eventually exterminated in a genocide which became known as the Holocaust during World War II, including around two-thirds of the Jewish population of Europe.

The first German concentration camps were established in 1933 for the confinement of opponents of the Nazi Party—Communists and Social Democrats. Political opposition soon was enlarged to include minority groups, chiefly Jews, but by the end of World War II many Roma, homosexuals, and anti-Nazi civilians from the occupied territories had also been liquidated. After the outbreak of World War II the camp inmates were used as a supplementary labour supply, and such camps mushroomed throughout Europe. Inmates were required to work for their wages in food; those unable to work usually died of starvation, and those who did not starve often died of overwork. The most shocking extension of this system was the establishment after 1940 of extermination centres, or “death camps.” They were located primarily in Poland, which Adolf Hitler had selected as the setting for his “final solution” to the “Jewish problem.” The most notorious were Auschwitz, Majdanek, and Treblinka. (See extermination camp.) At some camps, notably Buchenwald, medical experimentation was conducted. New toxins and antitoxins were tried out, new surgical techniques devised, and studies made of the effects of artificially induced diseases, all by experimenting on living human beings.

When I finally returned to Czemierniki in 1993, despite the years in which Jews had lived there I could not find a trace either of my family or of Jewish life. Even the cemetery where my grandfather had been buried had been razed. The synagogue was gone. I went to ask the local priest, who said they had taken the tombstones and crushed them for building materials or something like that. I believe they deliberately destroyed any sign of Jewish life so as to be rid of us for ever.
The process of selection and murder was carefully planned and organized. When a train stopped at the platform, veteran prisoners received the victims and gathered their belongings in several barracks in an area known as “Kanada.” The arrivals were lined up in two columns – men and boys in one, women and girls in the other – and SS physicians performed a selection.  The criterion was the appearance of the prisoners, whose fate, for labor or for death, was determined at will. Before they entered the chamber, they were told that they were about to be disinfected and ordered to undress. The doors of the chamber were locked and the gas was introduced. After the victims were murdered, their gold teeth were extracted and women’s hair was shorn by the Sonderkommando – groups of Jews forced to work in the crematoria. The bodies were hauled to the crematorium furnaces for incineration, the bones were pulverized and the ashes were scattered in the fields.
Spengler's notions of "Prussian socialism" as described in his book Preussentum und Sozialismus ("Prussiandom and Socialism", 1919), influenced Nazism and the Conservative Revolutionary movement.[110] Spengler wrote: "The meaning of socialism is that life is controlled not by the opposition between rich and poor, but by the rank that achievement and talent bestow. That is our freedom, freedom from the economic despotism of the individual".[110] Spengler adopted the anti-English ideas addressed by Plenge and Sombart during World War I that condemned English liberalism and English parliamentarianism while advocating a national socialism that was free from Marxism and that would connect the individual to the state through corporatist organisation.[109] Spengler claimed that socialistic Prussian characteristics existed across Germany, including creativity, discipline, concern for the greater good, productivity and self-sacrifice.[112] He prescribed war as a necessity by saying: "War is the eternal form of higher human existence and states exist for war: they are the expression of the will to war".[113]

As a result of the Holocaust, the term "concentration camp" carries many of the connotations of "extermination camp" and is sometimes used synonymously. Because of these ominous connotations, the term "concentration camp", originally itself a euphemism, has been replaced by newer terms such as internment camp, resettlement camp, detention facility, etc., regardless of the actual circumstances of the camp, which can vary a great deal.